Low-head dams induce biotic homogenization/differentiation of fish assemblages in subtropical streams.

ABSTRACT: Extensive distribution of widespread species and the loss of native species driven by anthropogenic disturbances modify community similarity, resulting in a decrease or increase in community distinctiveness. Data from four basins in the Wannan Mountains, China, were used to evaluate the effects of low-head dams on patterns of fish faunal homogenization and differentiation based on abundance data. We aimed to examine the spatial changes in taxonomic and functional similarities of fish assemblages driven by low-head dams and to examine whether the changes in the similarity of fish assemblages differed between taxonomic and functional components. We found that low-head dams significantly decreased the mean taxonomic similarity but increased the mean functional similarity of fish assemblages i

SUBMITTER: Li Q 

PROVIDER: S-EPMC9338443 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature